Behavioral, Modeling, and Electrophysiological Evidence for Supramodality in Human Metacognition
Behavioral, Modeling, and Electrophysiological Evidence for Supramodality in Human Metacognition
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DOI：
10.1523/jneurosci.0322-17.2017
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发表时间：
2018-01-10
影响因子：
5.3
通讯作者：
Blanke, Olaf
中科院分区：
文献类型：
--
作者：
Faivre, Nathan;Filevich, Elisa;Blanke, Olaf
人类的元认知，即反思自己心理状态的能力，主要是通过视觉任务中的信心报告来表征的。一个紧迫的问题是，视觉研究的结果在多大程度上适用于其他领域。回答这个问题可以确定元认知是通过共享的超通道机制还是通过特殊的、特定于通道的机制来运行的。在这里，我们报告了三条新的证据，证明了决策和决策后机制支持元认知的超情态。首先，元认知效率与听觉、触觉、视觉和视听任务相关。其次，视听任务中的信心是基于听觉和视觉信号的综合表征，使用超通道格式进行最佳建模。第三，对正确反应的信心涉及视觉和视听任务的类似电生理标记，这些标记与知觉判断之前的运动准备有关。我们的结论是，元认知的超通道依赖于跨感觉通道共享的超通道信心估计和决策信号。
Human metacognition, or the capacity to introspect on one's own mental states, has been mostly characterized through confidence reports in visual tasks. A pressing question is to what extent results from visual studies generalize to other domains. Answering this question allows determining whether metacognition operates through shared, supramodal mechanisms or through idiosyncratic, modality-specific mechanisms. Here, we report three new lines of evidence for decisional and postdecisional mechanisms arguing for the supramodality of metacognition. First, metacognitive efficiency correlated among auditory, tactile, visual, and audiovisual tasks. Second, confidence in an audiovisual task was best modeled using supramodal formats based on integrated representations of auditory and visual signals. Third, confidence in correct responses involved similar electrophysiological markers for visual and audiovisual tasks that are associated with motor preparation preceding the perceptual judgment. We conclude that the supramodality of metacognition relies on supramodal confidence estimates and decisional signals that are shared across sensory modalities.